Mobile Hotspot in 10536

Does anyone's Mobile Hotspot continue working after the screen blanks? It cuts out on my 10536 920 connected to power or not and I can't see how to change that behavior. It did not used to do that (last time it worked) and still doesn't on my 1520 running 8.1. If this was resolved I'd upgrade my work 1520 today but the lack of usable Hotspot behavior is preventing me.

even me the same problem on Lumia 1320. After the screen blanks out the functionality of the hotspot is lost. ( I tried to keep the screen on by touching it intermittently and till the screen blanks out it works)

Same here. I thought it was already fixed. I tried to reset the phone, for a while it worked even after locking the screen. But after setting up everything else, it stopped working again. I updated from 8.1